z570, bsod on launching 3d apps(nvidia)

hi, I've bought ideapad z570 some weeks ago and have troubles with it(since buying) When I switch(using button) to the discrete nvidia video card and launch app(which using 3d graphics), windows 7 freeze and show bsod(driver nvlddmkm.sys, error 0x116). Internal intel video card works great. I found a way(hack ) how to use nvidia card: I switch to nvidia (using button), set maximum performance in lenovo energy management and reboot. After this every games/apps works great. How can I fix it? Thanks. PS: sorry for my english.

Betreff: z570, bsod on launching 3d apps(nvidia)

Delete ")" from the end of linkI understand what you meanI beleave that it is a hardware bug... and I am going to go in maintenance services. If you have some updates, can you please let me know via skype/icq/mail?

To save you the trouble, this didn't work. I did a clean re-install, installed nothing else and the problem still occurs. I can't even go into NVIDIA control panel because even attempting to load the 3D preview in the control panel sends me straight to the blue screen.